Transmission mechanism.



G. JACOBS. TRANSMISSION MEGHANISM. APPLICATION FILED ouT. 16, 1909.

G. JAGUBS. TRANSMISSION MEGHANISM.

I A APPLICATION FILED OUT. 16, 1908. Lmp Patento Oct. 28, 1913.

3 BHEETB-SHEET 2.

G. OBS. TRANSMIS M msm.

APPLICATION FILED .16, 1908.

LYQQ. Patented Oc 1913.

'UNITED 'STATES PATENT OFFICE.

erronea moons, er sauren, omo, nssxeivoa ro srnwanr s. m

' rnansnrssron umarmen.

To all 'whom t may concern.'

'Be it known that I, G nonen JACOBS, a subject of the Emperor of Germany, residing at Canton, in ci Ohio, have invented certain new and useful Improvements in Transmission Meehanism, cation, `reference being had therein -to the accompanying drawings.

This invention relates to a power transmission mechanism, 'and more particularly to variable speed transmission mechanism.

One yobject of the invention is to rovide f a variable speed mechanism in which the speed at which power is transmitted'is controlled by a Huid. l I

A` further object of the invention is to provide auxiliary or supplemental means to the fluid control system for making the mechanism a positive and direct drive connection at will.

Other objects of my imlention will be obvious from the following description of a mechanism embodying it, which has been erably lradially of such chosen for the purpose of illustration.

Figure 1 'is a view of a transmission mechanism, embed ing my invention, the driven shaft bei-ng sliown in lsection and parts of the mechanism being` 'broken away. Fig. 2 is a central longitu i 2-2, Fig. 1.- Fig. 3 is asectional View on the line 3--3,.Fig. 1." Fig. 4. is a sectional view on the line 4,4, Fig. 'l' are detail views.

In the drawings, 1, 2, the `former of which is preferably the driving and the latter the driven'shaft.

VB indicates-i-a gear fixed to shaft 1, and et indicates a'diskor late fixed to shaft 2.

5 are pinions mesiiing with-'the gear 3 and each keyed to a shaft 5 which'is rotatably mounted in suitable bearings carried by the disk 4. I have shown in the drawin s, four around t sirable.

6 is a crank secured to or made with each of the'shafts 5a. y

7 represents Huid mechanism comprising a cylinder 7a and a compress fluid thcrei l 7 represents a connecting rod between the piston 'i'b and theadjacent crank 6. I provide as manyylinders or pumps,l preflilsposed on the 'disk' 4, as

integral v Specification of Letters Patent. Application led October 18, 1908. Serial No. 458,101.

the county of Stark and State of which the following 'is a` specifi- .allel to the axis of the, shafts mg the shaft 2,

' the meaning of nal section on the line.

l.v Figs. 5, 6, andindicate two shafts,-

inions arranged at equal distances. e said shaft but a. less or greater 'number' may be' provided as is found depiston 7", adapted-to Patented oet. as, 191s.

there are pinions 5, wherelf a each pinion operates a slngle plston.

ch pump or rz, or CANTON, omo.

cylinder may be mounted on or cast integral with the disk or plate 4. The inner end of each cylinder is open and is preferably urranged so that its edge lies in 4a plane parl and 9., and the other cylforms with the inner edges. of

slideway 8, square lnders a passageway or 1n cross section.

9 indicates .means for 4regulating thel escape lof Huid from the inner ends of the cylinders, sion 1n' the latter. This controlling-means preferably consists 'of 4a sleeve 9 surroundthereon, and fitted way 8. This sleeve side with a number snugly in the passageis provided on the outof flat surfaces", one for each pump or c linden?, and is adapted to open and close t e inner ends of the cylinders and thus control' the compression of thereby controlling the compresslidable longitudinally fluid therein. I n-the use of the term fluid throughout the specification and claims, I desire to be understood as including within such term, liquids. By reference to the drawings, .it will be seen that by sliding'the sleeve 9* toward and from .the disk et, the flat surfaces or valve ortions 9b o erate to close air, vapors or all of the inner ends of the various cylindersjsimultaneously.

10 represents a collar carried by the controlling means 9 and adapted to receive a yoke or other device for eifecting the slid- Each cyling of the sleeve 9 to and fro. inder is provided with suitable inlet ports ,for-the air or other fluid. These', for illustration, I have shown at 11 on each cylinder, intermediate of its ends, referably a number of such inlet ports being disposed about the periphery of each cylinder in a common plane, and .arranged to be cleared by the.

piston in said cylinder on its outward stroke,

so as to allow the free intake of air to the.

inner end. off the cylinder.

When the shafts 1` and 2 .are free to rotate relative] is rotating, t e gear 3 rotates the vpinions 5 thereby causing the reciprocation of the pistons 7" Aback and forth in theirres ective cylinders 7*. As the outer ends of `t xe cylinders are open to the atmosphere, no compression ltakes place in a cylinder as its piston movesfoutwardly therein. When it .1s desired to transmit power fromV the drivto each other and the former zpinions means separate or auxiliary that its ing shaft 1 to the driven shaft 2, the controllin valve 9 is moved'to close the inner ends o the pumps or cylinders; and by the movement of the pistonss?b toward the inner ends of their respective cylinders 7, the fluid therein is Compressed. The gear 3 tends to rotate the pinions 5' about their respective axes, and the resistance of the fluid in the cylinders .to compression by they pistons, tends to roppose through the connecting rods and cranks, the rotation of the 5 about their respective axes. When this resistance to rotation of said pinions incident to the compression aforesaid equals or exceeds the effort of said gear 3 to revolve the pinions'about their respective axes, then the gear 3 and disk' 4 will rotate atthe same speed. When, however, the resistance which the compression devices oifer to the rotation of the pinions 5V about their respective axes is less than the turning effort of the gear 3 on said pinions, the pinions will turn on their 'respective axes and will also ride around the gear 3, causing the disk e to be rotated, but at less speed than the speed of rotation of the driving shaft. Since, when the device is thrown into operation, the movements of the pistons 7b compress the fluid in the cylinders gradfrom normal pressure to a pressure iially sufliciently great to stop the rotation of the pinions, the' forces acting upon the latter are retarding in their nature and effect a clutching of the two shafts 1, 2, without undue torsional strains thereon.

It is expedient to be able to positively lock the shafts 1, 2, in operative relation` by to the fluid mechanism. For this purpose I preferably provide a pin 12 adapted to interlock or connect theV disk Llto the gear 3.y This pin is threaded and screwed-at one endv into an arm 12 preferably carried by the controlling valve 9. The pin extends through an aperture 12b that is formed in the disk 4, so free end may project through said aperture and engage withv the gear 3 and lock the latter to the said disk by a sliding movement of the valve 9.

13 indicates a recess formed in the gear 3 to receive the free end of the pin, and 14 indicates a guide slot leading to and having its botto-m surface inclined toward the regear 3.

cess 13. rIhe free end of the pin 12 is also preferably given an inclination corresponding to the bottom surface of the slot 14.

. In the preferredform of the invention I provide a series of pins 12 arranged at equal distances apart around the axis of the shaft 2; and preferably arranged so 4that each .lies

between adjacent sides of adjoining pumps, and also provide an equal number of apertures 12 in the disk 4;, and recesses 13 and slots lili correspondingly arranged in the By this construction the forces "the pump or compression cylinders.

it may be drawn into suction strokes.

thereon. By sliding opposite within their respective positions; lone is down and the other is upywhile .the remaining two are inv-mid position, one asvshaft and the other deseen @to compress the duid in i o rating to turn the shafts when locked directly to ether are equalized upon o-pposite sides o? the axes of the s'aidlshafts.

The .pins 12 are Vcarried by and move simultaneously with the valve 9, but lthey are of such length that they'do not normally 'extend to or come into interlocking enga-gement with the gear 3- 'wheny the valve is moved so as just to-close the inner ends rlof o causethe pins 12 to engage with the gear 3, the valve 9 is given an additional sliding movement beyond thepoint where the inner ends of the cylinders are closed by it; .the purpose being that this operation of locking the two shafts in operative relation shall .not take place until after they have been 'clutched together and power transmitted from one to the other through the fluid mechanism, and the driven shaft has been brought up to substantially the same speed of rotation as the driving shaft. To permit the sliding movement of the valve 9 for throwing lthe positive locking means into operation, the disk 4' is preferably recessed at 15 to receive the inner end of the sleeve` while the latter is cut away at its corners, as shown at 16, so that the fluid in the recess `15 may escape and also to increase the space in the device into which fluid is exhausted from the cylinders and from which the cylinders on the By sliding the sleeve 9 slowly toward the disk Lto close the inner ends of the cylinders, Qthe compression of the fluid therein may be so controlled that the rate of the ret-arding force operating to stop the rotation of the lpinions about .their respective axes will be very slow, thus throwingl the clutch mechanism into operation gradually and effecting a turning of the driven shaft at a slow rate of speed, and without jar or sudden strains the sleeve slowly in the direction the two shafts may be unclutched. in a similar manner, or it may be moved rapidly, unclutching the tivo shafts immediately.

YInthe'drawings, I have preferably shown the'pistons in different relative positions that is,

cending or moving outwardly relative to the Ling or moving inwardly. In this arrangement, it will be seen that whenever the valve is operated, one of the pistons is always in position ready ylinder as soon as the inner end the l, so that the driving shaft atar i'nediately thrown into clutch If desired, howez ranged so thatt timegthe reniaini is :may be are ascenem' at the same 1 two are descending, or

theymay -all be arranged ito move jin lthev same direction simultaneously. To those skilled l'in the art of constructing a mechanism of `theclass described, many embodiments and disclosures and description sherein are purely illustrative, and are not 'intended to be in any sense limiting.

What ll claim is: l. In a transmission mechanism, the combination with a driving shaft anda driven shaft, of a gear mechanism for connecting the two shafts comprising a gear carried by one of the said shafts fand a :plurality of 'pinions carried by thevother shaft and each meshing with said gear, the said pinions being uniformly spaced from each other around the axes of said shafts, a fluid compression system for controlling 'the relative movement of said pinions and gears Kincluding a series of compression cylinders, and pistons eachv operated by oneof said pinions, each of said cylinders being entirely open at its compression end for the escape of -Ifluid and said open end-operating as a valve seat, and a valve mechanism for closinv said open ends.

2. lin -a transmission mechanism, the combination with a `dri-ving shaft and a driven shaft, of a 'gear mechanism `for connecting the ltwo shaftsf comprising a gear carried by one of the said shafts and av plurality of pinions carried by the other shaft `and each meshing with said gear, the said .pinions being uniformly spaced from each other around the arreso .said shafts, a duid compression sysjtem for controlling the relative movement Ao said pinions and gears including a Iseries `:of compression cylinders, and

' shafts and their compression ends being eni fluid, the com `auxiliary means for pistons each o said cylinders erated by one of said Apinions, eing arranged radially ofthe tirely open, and: a valve for closing said open endsslmultaneously.

3. In transmission mechanism, the combination with adriving` shaft and a driven shaft of planetary gear mechanism connecting t e two shafts, a fluid compression system for controlling the relative movement of the `planeta-ry gears including a compression cylinder having an inlet o ening for the pression end of the said cylinder being entirely open and the circumferential edge or wall at the said end forming a valve seat, and a single valve for controllin the said `open end.

i In transmission mechanism, the combination with two shafts, offa member carried by each shaft,ili1id 'operated means for connecting the two memberstogethen andpositively connecting the said Ytwo-members together.`

'5. The combination of two shafts, one of tween the cylinders neet' the disk and gear which is driven, =a lmember carried by each shaft, 'means including a plurality of compression cylinders for connecting the two members together, and means interposed befor positively locking the two members inoperative relation.

'6. The combination of two shafts one of which is adapted lto be driven bythe other, liuid operated lmeans for connecting the two Shafts together, the said means comprising apluralityof compression cylinders, means for contro-lling fthe fluid operated means, and means interposed between the compression cylinders or positively locking the shafts lin operative relation.

7. I'n transmission mechanism, the combination with a drivin shaft and a driven shaft, of a ear carrie by one of the said shafts, a'dis carried by vthe other shaft, a freely rotatable pinion mounted on the disk and meshing with the said gear, means for preventin the rotation of the inion to conneet the isk and ear togetier, and separate means for loc ring the said disk and gear together, the said separate means being connected with and control meansJ whereby the separate means connect the dislrand gear after the pinion control means has been operated to prevent rotation of the pinion and disconnect the disk and gear prior to the operation of said means when operated to release the pinion.

8. ln transmiseion mechanism, the combination with a drivin shaft and a driven shaft, of a gear carrie by o-ne ofthe said shafts, a disk carried by the other shaft, a freely rotatable pinion mounted on Vthe disk and meshing with the said gear, means for preyenting the rotation of the pinion to contogether, and interlocking means between the disk and gearv for :positively locking them together, the said interlocking means being actuated by the pinion control means.

9. In transmission mechanism, the combination with a driving shaft and a driven ear carried by one of the said shaft, a shafts, a isk carried by the other shaft, a4 compression cylinder, provided with a piston, carried by the said disk, the compression end ofthe cylinder being open, a pinion meshing with the said gear and connected with the piston, and aY valve slidably mounted on one of the shafts for closing the open end of the said cylinder for and controlling the compression of a fluid therein.

C10.` 4In transmission mechanism, the combination with a driving shaft and a driven shaft, of a gear carried by one of the said' shafts and a disk carried by the other, a in-4 ioncarried by# said disk and arrange to mesh with the said gear, .a compression pump or cylinder carried by the disk for y the gear and disk are connected together,

actuated by the pinion l revent'ing the rotation of the pinion wherey shaft, of means means for controlling the operation of the pump or cylinder, and means extending through the disk and arranged to engage with the gear for ,positively locking the said disk and'gear together.

11. In transmission mechanism, the combination with a driving shaft and a driven shaft, of a gear carried b one of the said shafts and a disk, carri by the other, a pinion carried by said'disk and arranged t0 mesh with the said gear, a compression pump ory cylinder carriedv by the disk for preventing the .rotation of the pinion wherey the ear and disk are connected together, means or controlling the operation of the pump or cylinder,an a rod operated by the movement of the said controlling means and extending through the disk and engaging said gear for positively locking the disk an gear together.

12. In transmission mechanism, the com bination with a driving shaft and a driven shaft, of a gear carried by one of the said shafts and provided with a recess, a disk carried by the other shaft, Huid operated means for connecting the disk and 'gear together, and a pin extending through the disk and arranged toy enter the recess in the gear for locking the said gear` and disk together.

13.* In transmission mechanism, the com- .bination with a driving shaft and a driven shaft, of a gear provided with a recess carried by one of the shafts, a disk provided with an aperture carried by the other shaft, fluid operated means lfor connecting the gear and disk together, means for controlling the operation o the fluid operated means, and a pin extending through the aperture in the disk and arranged to enter the recess in the gear for locking the disk to the gear.

. 14. In transmission mechanism, the combination with' a driving shaft and a driven shaft, of means for connecting the two shafts together, includin a cylinder having an open end, and a va ve slidable on one of the shafts for closing the openend of the said cylinder to control thecompresslon therein.

1,5. In transmission mechanism, the com bination witha driving shaft and a driven shaft, of means for connecting the two'shafts including a vcylin er having an open end, and aj valve slidable on one of the' shafts for closing the open end of the said cylinder to control the compression therein, and means for positivel ,locking the said shafts together in clutch relation.

16. In transmission mechanism, the combination with a together,

driving shaft and a driven including a cylinder having an open end, and a valve slidable on one of the shafts for closing theopen end ofthe said cylinder to control the compressionthereim and means operated by the said valve for together,

.-the rotation of said pinion surfaces. each ada for connecting the two shafts Y positively locking the said shafts in clutched relation.

.17 transmission mechanism, the com bination of a driving shaft, a driven shaft,

a disk carried by one of said shafts and a pinion carried thereby, a gear carried by the other shaft and meshing with said inion, fluid compression means for contro ing whereby the disk and gear may be connected and disconnected to and from each other, separate means for locking the disk andA gear together, and a slidable device operating first to control the fluid compression means and then to operate the said disk and gear locking means.

18. In transmission-mechanism,

nation of a driving shaft and a driven shaft,

fluid operated means including a plurality of radially disposed compression cylindersfor connecting the said shafts together, each of said cylinders havinits compression end open, and a valve mem er having a pluralsurfaces each adapted ity of cylinder closin of an adjacent cylinto close the open en der.

19. In transmission mechanism, the combination of a driving shaft and a driven shaft, fluid o rated means including a plurality of radially disposed com ression cylinders for connecting the sai shafts together, each of said cylinders having its in-l ner compression end open, and a sliding valve member having a plurality of cylinder closing surfaces, each adapted to close the open end of an adjacent cylinder.

20. In transmission mechanism, the combination lof a driving shaft and a driven' shaft, fluid operated means including a plurality of radially disposed compression cylinders for connecting the sai shafts together, each .of said'cylinders having its inner compression end open, and a valve member 'slidably mounted on one of said shafts and havingy a plurality-of cylinder closing ted to close the open endof an adjacent cy inder.

21. In transmission mechanism, the combination of two shafts, one of which is driven two members, one carried by each of said shafts, andmechanism for connecting the said members together including a c hnder open at its compression end, a uid ing member in said cylinder and movable therein in one direction' to a point substantially in the plane of the o end of the cylinder, and a valve for c osing Athe open end of the cylinder. l .y

22. In transmission mechanism, the combination ofv two shafts, one -of which is driven,.means for connecting the twoshafts to ether, the said means including a ilura ity of open ended cylinders. an a uid displacing member movablyV mounted in each cylinder, and mechanism for controlthe combi- 'splaciin the compression in said cylinders, the sai mechanism comprising o, member slidable on one of said shafts and a.s1iding Valve for closing the open end of each cylnder, the seid valves being connected Wlth and operated simultaneously by said slidable member.

GEORGE .moons Witnesses:

W. H. SMITH, EDWARD R. .PLLPJXAIVDFHL` 

